Dr Christopher Sim was an invited speaker for this event , organised by Dentium . The Symposium was held on 26 July 2015 at Yokohama , Japan . Yokohama is Japan ‘s second largest city with a population of 3 million people. It is located less than half an hour south of Tokyu by train. This was the second time Dr Christopher sim was invited to give a lecture on dental implant surgery. in Japan .

Dr Christopher Sim lecture topic “ The timing of implant placement in the aesthetic zone “ was well received by the participating dentists.